host: we will go to the republican line from new york city. caller:hi, i am a physician and worked in the time of son of sam and i treated one of his last victims. the destruction that a sudden killing like this is enormous. i think the mental health screening has to be more pori part of this. the fact that we cannot commit people showing extreme mental illness with several rights laws is a deeper issue than gun control. >host: how should vice president joe biden and the white house address this. mental illness is part of the debate and will be part of the solution. >> i think they really need to look at civil rights laws and be able to intervene more aggressively with mental health professionals when people show a consistent pattern of mental illness. i think you can travel through any city in america and see massive amounts of people who are not capable of taking care of themselves. as a society, we are not humanitarian when we leave them to defend themselves. >host: this argument is not new. it is highlighted in the extensive report in "the